2100000221983 has 2 divisors, whose sum is σ = 2100000221984. Its totient is φ = 2100000221982.

The previous prime is 2100000221939. The next prime is 2100000222037. The reversal of 2100000221983 is 3891220000012.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2100000221983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100003221983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050000110991 + 1050000110992.

It is an arithmetic number, because the mean of its divisors is an integer number (1050000110992).

Almost surely, 2^{2100000221983} is an apocalyptic number.

2100000221983 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100000221983 is an equidigital number, since it uses as much as digits as its factorization.

2100000221983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

Adding to 2100000221983 its reverse (3891220000012), we get a palindrome (5991220221995).

The spelling of 2100000221983 in words is "two trillion, one hundred billion, two hundred twenty-one thousand, nine hundred eighty-three".